CN102853888A - Multifunctional high-precision weighing system based on virtual technology - Google Patents
Multifunctional high-precision weighing system based on virtual technology Download PDFInfo
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- CN102853888A CN102853888A CN2012103339992A CN201210333999A CN102853888A CN 102853888 A CN102853888 A CN 102853888A CN 2012103339992 A CN2012103339992 A CN 2012103339992A CN 201210333999 A CN201210333999 A CN 201210333999A CN 102853888 A CN102853888 A CN 102853888A
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Abstract
The invention provides a multifunctional high-precision weighing system based on a virtual technology. The multifunctional high-precision weighing system is formed in such a way that an instrument amplifier and an amplifier are used to carry out two-stage amplification on a weak signal outputted by a constant section cantalever type sensor, an analog-to-digital converter is controlled by a singlechip to perform analog-digital conversion on the amplified signal, meanwhile, a serial port communication level translator is used to conduct the level conversion on acquired data and then sends the acquired data subjected to the level conversion to a computer through a serial port, and functions of password authentifying, unit price setting, data processing, displaying, storing, transmitting and controlling are achieved through LABVIEW software.
Description
Technical field
The present invention relates to a kind of multifunction high-precision weighing system based on virtual technology.
Background technology
Traditional measurer is steelyard or pan scale, and along with the development of electronic technology, traditional weighing system more and more is difficult to satisfy people's needs at aspects such as function, precision, intellectuality, cost performances.The electronic scales that the 70's of 20th century occur, it is high to begin to manifest its measuring accuracy in all trades and professions, and measuring speed is fast, and is simple to operate easy to learn, has been substituted traditional mechanical lever and measured scale.Along with people's living standard improves constantly, computing machine is come into huge numbers of families, and electronic scales often all is the finished product that businessman makes in advance, can not be connected with present computing machine function singleness.And for realizing and the electronic scale of compunlcation that it is expensive, and is difficult in maintenance, use inconvenient.Simultaneously, present electronic scale is bulky, and the dirigibility convenience is seriously limited, has also caused power consumption height, maintenance difficult etc. series of problems.Therefore, how reducing hardware component, how to reduce power consumption, reduce maintenance difficulty, realizing in the situation of Cost reduction that simultaneously multi-functional, high precision, convenient and practical weighing system are the problems that need to consider of conservation-minded society now.
Summary of the invention
The objective of the invention is: realize a kind of multifunction high-precision weighing system based on virtual technology.The integrated electronic weighing system that adopts Modern Sensor Technology, data acquisition technology, computer technology and virtual technology and realize.
Technical scheme of the present invention is: article are placed on the uniform cantilever beam formula sensor, uniform cantilever beam formula sensor will be exported a weak voltage signals, weak voltage signals with instrumentation amplifier and the output of integrated operational amplifier equal cross section beam type sensor carries out sending into analog to digital converter after two-stage is amplified, carry out data acquisition by the Single-chip Controlling analog to digital converter to amplifying rear simulating signal, utilize simultaneously level translator that the microcontroller serial port output level is sent into computing machine through conversion by serial ports, realize logging in password authentification by the Virtual Instrument Development software in the computing machine, unit price is set, data are processed, show, preserve, transmission and control function.
Major advantage of the present invention is:
1, by the virtual software display interface, can realize the Item Information printing, also the price that is weighed object can be set independently, and demonstration Payment Amount, come to satisfy and solve " fast, accurately, continuously, automatically, remote synchronization " the weighing requirement that proposes in the actual life, simultaneously effectively eliminate personal error, make it more to meet the application requirements of legal system measuring control and industrial processes control;
2, the use function of electronic weighing system can be changed, the characteristics such as real-time control, storage, remote transmission can be realized;
3, can be connected with computing machine, can change in real time according to user's needs the use function of system, powerful, extended capability is strong;
4, hardware component is few, uses simple, easy to maintenance, low in energy consumption;
5, high precision.The present invention sends into Computer Processing with signal after by analog to digital conversion, so that data error is little, precision is high, can change as required the not analog to digital converter of isotopic number simultaneously, satisfies the different accuracy demand;
6, the used software of the present invention does not disturb other functions of computer, so the user can use simultaneously other functions of computer and not affect use of the present invention in use just take computer as support.
Description of drawings
Below in conjunction with accompanying drawing type of the present invention is further specified.
Fig. 1 is the overall system design frame diagram of type of the present invention.
Fig. 2 is the Single Chip Microcomputer (SCM) program process flow diagram of type of the present invention.
Fig. 3 is the computer architecture framework of type of the present invention.
Fig. 4 is the signal amplification circuit schematic diagram of type of the present invention.
Fig. 5 is the data acquisition circuit schematic diagram of type of the present invention.
Embodiment
The present invention is further described below in conjunction with accompanying drawing.
The present invention has software and electronic scales weighing device two parts on structure.The electronic weighting device comprises uniform cantilever beam formula sensor, signal amplification circuit, data acquisition circuit and data transmission circuit; Signal amplification circuit is comprised of instrumentation amplifier and integrated operational amplifier; Part of data acquisition is comprised of analog to digital converter, and the employing single-chip microcomputer is control core; Data transmission circuit carries out level conversion by level translator and sends into computing machine by serial ports under Single-chip Controlling.Software section comprises single-chip microcomputer end software and computer terminal software.Single-chip microcomputer end software adopts the C language to write, and main realization communicates and controls analog to digital converter with computing machine and carries out data acquisition.Computer terminal choice of software LabVIEW graphic language is write, and realizes logging in password authentification, weight demonstration, unit price setting, shows the functions such as Payment Amount and weighing historical record.
Referring to Fig. 1, the weak voltage signals that cantilever beam sensor output is corresponding with Item Weight, amplify output through amplifying circuit, by the Single-chip Controlling analog to digital converter amplified signal is gathered, utilize simultaneously level translator that the microcontroller serial port output level is sent into computing machine through conversion by serial ports, realize logging in the functions such as password authentification, unit price setting, data processing, demonstration, preservation, transmission, control by LABVIEW software.
Referring to Fig. 2, behind the single-chip microcomputer electrification reset, the control analog to digital converter is selected the input analog channel, and simulating signal carried out analog to digital conversion, and utilize level translator that the microcontroller serial port output level is carried out level conversion, send into computing machine by serial ports again, the function such as the data of sending into by LabVIEW software collection serial ports and executing data processing, demonstration, preservation, transmission, control.
Referring to Fig. 3, computing machine is mainly used in processing, demonstration, preservation, transmission, the control to data.The software of using is the LABVIEW of NI company.This software is responsible for gathering data that serial ports sends into and is shown through after the respective handling.
Referring to Fig. 4 and Fig. 5, this figure is the hardware components circuit diagram.It comprises that signal amplifying part is divided, analog to digital conversion part, serial communication.Wherein analog to digital converter is by Single-chip Controlling.
Claims (4)
1. multifunction high-precision weighing system based on virtual technology, it comprises the scale pan, uniform cantilever beam formula sensor, instrumentation amplifier, integrated operational amplifier, analog to digital converter, single-chip microcomputer, level translator and computer terminal software LabVIEW, it is characterized in that: with uniform cantilever beam formula sensor output signal by signal amplify with data acquisition after link to each other with computing machine, using LABVIEW software to carry out data processes, its annexation is: the scale pan links to each other with sensor, the sensor output terminal links to each other with the input end of signal amplification circuit, the signal amplification circuit output terminal links to each other with the analog to digital converter input end, the output terminal of analog to digital converter links to each other with single-chip I/O mouth respectively with control end, the RXD of single-chip microcomputer, TXD respectively with the RXD of level translator, TXD links to each other, the data communication signal that is used between realization and the computing machine transmits mutually, by LabVIEW software data is processed.
2. the multifunction high-precision weighing system based on virtual technology as claimed in claim 1, it is characterized in that: the weak voltage signals that cantilever beam sensor output is corresponding with Item Weight, and by the amplification of 2 grades of amplifying circuits realizations to the sensor outputting analog signal.
3. the multifunction high-precision weighing system based on virtual technology as claimed in claim 1, it is characterized in that: under the control of single-chip microcomputer, realize simulating signal to the conversion of digital signal by analog to digital converter, utilize level translator that the microcontroller serial port output level is sent into computing machine through conversion by serial ports.
4. the multifunction high-precision weighing system based on virtual technology as claimed in claim 1, it is characterized in that: computer terminal choice of software Virtual Instrument Development software is write, and realizes logging in password authentification, weight demonstration, unit price setting, shows the functions such as Payment Amount, weighing historical record and information printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103339992A CN102853888A (en) | 2012-09-12 | 2012-09-12 | Multifunctional high-precision weighing system based on virtual technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103339992A CN102853888A (en) | 2012-09-12 | 2012-09-12 | Multifunctional high-precision weighing system based on virtual technology |
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| CN102853888A true CN102853888A (en) | 2013-01-02 |
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| CN2012103339992A Pending CN102853888A (en) | 2012-09-12 | 2012-09-12 | Multifunctional high-precision weighing system based on virtual technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143034A (en) * | 2018-09-10 | 2019-01-04 | 上海华虹集成电路有限责任公司 | Chip ADC automatic performance test system and method |
| CN112985551A (en) * | 2021-02-06 | 2021-06-18 | 安徽新华学院 | Electronic belt scale electrical parameter testing method based on virtual instrument |
| CN114563072A (en) * | 2022-03-15 | 2022-05-31 | 南京邮电大学 | Vehicle-mounted high-precision real-time weighing device convenient to disassemble and assemble |
| CN114608695A (en) * | 2021-12-03 | 2022-06-10 | 北京复兴华创技术有限公司 | Electronic scale reading system, method, medium, and apparatus |
Citations (4)
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| US4181946A (en) * | 1977-08-25 | 1980-01-01 | Reliance Electric Company | Digital scale |
| US4605080A (en) * | 1980-07-11 | 1986-08-12 | Lemelson Jerome H | Speech recognition control system and method |
| CN201344837Y (en) * | 2009-01-15 | 2009-11-11 | 陈吉新 | Microcomputer weighing measuring instrument |
| CN201795848U (en) * | 2010-10-08 | 2011-04-13 | 杨轲 | Intelligent network electronic price computing scale |
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2012
- 2012-09-12 CN CN2012103339992A patent/CN102853888A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181946A (en) * | 1977-08-25 | 1980-01-01 | Reliance Electric Company | Digital scale |
| US4605080A (en) * | 1980-07-11 | 1986-08-12 | Lemelson Jerome H | Speech recognition control system and method |
| CN201344837Y (en) * | 2009-01-15 | 2009-11-11 | 陈吉新 | Microcomputer weighing measuring instrument |
| CN201795848U (en) * | 2010-10-08 | 2011-04-13 | 杨轲 | Intelligent network electronic price computing scale |
Non-Patent Citations (1)
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| 葛亮等: "基于虚拟技术的高精度称重系统设计", 《制造业自动化》, vol. 33, no. 10, 31 October 2011 (2011-10-31) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143034A (en) * | 2018-09-10 | 2019-01-04 | 上海华虹集成电路有限责任公司 | Chip ADC automatic performance test system and method |
| CN112985551A (en) * | 2021-02-06 | 2021-06-18 | 安徽新华学院 | Electronic belt scale electrical parameter testing method based on virtual instrument |
| CN114608695A (en) * | 2021-12-03 | 2022-06-10 | 北京复兴华创技术有限公司 | Electronic scale reading system, method, medium, and apparatus |
| CN114608695B (en) * | 2021-12-03 | 2024-01-19 | 北京复兴华创技术有限公司 | Electronic scale reading system, method, medium and equipment |
| CN114563072A (en) * | 2022-03-15 | 2022-05-31 | 南京邮电大学 | Vehicle-mounted high-precision real-time weighing device convenient to disassemble and assemble |
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Application publication date: 20130102 |